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PALCE22V10 Datasheet(PDF) 15 Page - Lattice Semiconductor |
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PALCE22V10 Datasheet(HTML) 15 Page - Lattice Semiconductor |
15 / 34 page PALCE22V10Q-10 (Com’l) 15 CAPACITANCE 1 Note: 1. These parameters are not 100% tested, but are evaluated at initial characterization and at any time the design is modified where capacitance may be affected. Notes: 1. See “Switching Test Circuit” for test conditions. 2. These parameters are not 100% tested, but are calculated at initial characterization and at any time the design is modified where frequency may be affected. 3. tCF is a calculated value and is not guaranteed. tCF can be found using the following equation: tCF = 1/fMAX (internal feedback) - tS. Parameter Symbol Parameter Description Test Conditions Typ Unit CIN Input Capacitance VIN = 2.0 V VCC = 5.0 V TA = 25°C f = 1 MHz 5 pF COUT Output Capacitance VOUT = 2.0 V 8 SWITCHING CHARACTERISTICS OVER COMMERCIAL OPERATING RANGES 1 Parameter Symbol Parameter Description -10 Unit Min Max tPD Input or Feedback to Combinatorial Output 10 ns tS Setup Time from Input, Feedback or SP to Clock 6 ns tH Hold Time 0 ns tCO Clock to Output 6ns tAR Asynchronous Reset to Registered Output 13 ns tARW Asynchronous Reset Width 8 ns tARR Asynchronous Reset Recovery Time 8 ns tSPR Synchronous Preset Recovery Time 8 ns tWL Clock Width LOW 4 ns tWH HIGH 4 ns fMAX Maximum Frequency (Note 2) External Feedback 1/(tS + tCO) 83 MHz Internal Feedback (fCNT) 1/(tS + tCO) (Note 3) 110 MHz No Feedback 1/(tWH + tWL) 125 MHz tEA Input to Output Enable Using Product Term Control 10 ns tER Input to Output Disable Using Product Term Control 9 ns |
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